Table 1 Strains used in this work. All strains were obtained from the P. aeruginosa PA14 transposon insertion library. The location of the insertion in the multi-subunit proteins Mrp, NQR and Nuo, is subunit A for Mrp and NQR, and subunit NuoB or 1 in Complex I. Two different mutants were available for NhaP, and labeled mutant nhaP*1 (insertion at base pair 50) and mutant nhaP*2 (insertion at base pair 356), respectively. Both NhaP mutants were included in our testing
